This hammering activity has been on my list for a LONG time, and I'm so glad to finally get it together. O was very engaged in this work. She liked hammering, but she also enjoyed just pushing the golf tees (she didn't like me calling them golf tees. She corrected me and said "O calls them nails!") in with her fingers.
I love to see pictures of trays on other blogs, so I'm going to try to do more of that :) Here's an action shot (because I love action shots, too!).